Signs of a Bad Alternator

Car Alternator

Many drivers don’t know how important an alternator is until it stops working. Your alternator plays a huge role in starting your vehicle every day in Stephenville, and the initial signs of a bad alternator can be subtle. So, how do you know if it’s time to schedule a service? Learn how to tell if your alternator is bad with help from Bayer Motor Company, and get more information with our service center in Comanche to keep your car in top shape!



How to Tell if Your Alternator is Bad

What are the signs of a failing alternator? Because the alternator turns mechanical energy into electrical energy, it has a hand in a number of essential car functions. That means that a driver in Brownwood might notice strange noises, while a driver in Granbury might notice electrical problems – so proper diagnosis is key! Here are some common signs of a bad alternator:

  • Dim Lights: Dim or flickering lights is one of the most common signs of a failing alternator. Many drivers notice a dimness in their headlights, but this can also affect your dash lights or center dome light. If revving the engine makes your lights brighter, this points to the alternator even more.
  • Dashboard Lights: A failing alternator will likely trigger at least one of your dashboard lights. Most people notice a red battery icon that won’t turn off, but some get a “Check Engine” or “ALT” light instead.
  • Unusual Noises: Strange noises under the hood are always worth a trip to the service center. Some people notice a squealing noise from the serpentine belt or a grinding noise if the internal bearings have worn out, both can result from alternator issues.
  • Electrical Problems: The alternator has a huge role in your car’s electrical system. You may notice your electrical systems slowing down or stopping completely: sluggish power seats, radio turning off, windows failing to roll down.
  • Battery Dying: When the alternator goes, your car will use up your battery’s power without the ability to restore its charge. If you change your battery and it dies instantly, this is one of the major signs of a bad alternator.

Get Quality Car Service at Bayer Motor Company

Whether it’s time for your scheduled maintenance or an emergency visit to see our technicians, you can rely on the expertise of the Bayer Motor Company staff. Contact us today with any questions or schedule your service appointment today in Comanche!


More from Bayer Motor Company

  • 2024 Chevy Trax MPG

    When choosing a vehicle that shines on the roads of Stephenville, the 2024 Chevrolet Trax emerges as a top contender. Not only does this model boast an eye-catching design and impressive versatility, but it also offers performance that makes every journey in Brownwood a pleasure. Among its many features, the 2024 Chevy Trax mpg ratings…

  • 2024 Chevrolet Trax Configurations

    If you’re considering the 2024 Chevrolet Trax as your next vehicle, you’re in for a treat. This popular crossover offers versatility, style, and affordability in one package. However, before you rush into your purchase, exploring the 2024 Chevrolet Trax configurations available in Comanche is essential to ensure you get the model that suits your needs….

  • 2024 Chevy Trailblazer Towing Capacity

    Discover the 2024 Chevrolet Trailblazer – a fuel-efficient SUV that effortlessly blends adaptability with power. It’s the ideal companion for diverse tasks in the lively streets of Stephenville. At its heart is the impressive 2024 Chevrolet Trailblazer towing capacity, demonstrating the capability to tow up to 1,000 pounds when properly equipped. The 2024 Chevy Trailblazer…


Bayer Motor Company 31.8977, -98.61544.